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Relax store path canonicalization

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This commit is contained in:
John Ericson 2024-01-14 13:36:53 -05:00
parent b529d91902
commit 1063aa502a
2 changed files with 19 additions and 2 deletions
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8
src/libstore/globals.cc
View file

@ -49,7 +49,13 @@ static GlobalConfig::Register rSettings(&settings);
Settings::Settings()
: nixPrefix(NIX_PREFIX)
, nixStore(canonPath(getEnvNonEmpty("NIX_STORE_DIR").value_or(getEnvNonEmpty("NIX_STORE").value_or(NIX_STORE_DIR))))
, nixStore(
#ifndef _WIN32
// On Windows `/nix/store` is not a canonical path, but we dont'
// want to deal with that yet.
canonPath
#endif
(getEnvNonEmpty("NIX_STORE_DIR").value_or(getEnvNonEmpty("NIX_STORE").value_or(NIX_STORE_DIR))))
, nixDataDir(canonPath(getEnvNonEmpty("NIX_DATA_DIR").value_or(NIX_DATA_DIR)))
, nixLogDir(canonPath(getEnvNonEmpty("NIX_LOG_DIR").value_or(NIX_LOG_DIR)))
, nixStateDir(canonPath(getEnvNonEmpty("NIX_STATE_DIR").value_or(NIX_STATE_DIR)))

13
src/libstore/path.cc
View file

@ -63,7 +63,18 @@ StorePath StorePath::random(std::string_view name)
StorePath StoreDirConfig::parseStorePath(std::string_view path) const
{
auto p = canonPath(std::string(path));
// On Windows, `/nix/store` is not a canonical path. More broadly it
// is unclear whether this function should be using the native
// notion of a canonical path at all. For example, it makes to
// support remote stores whose store dir is a non-native path (e.g.
// Windows <-> Unix ssh-ing).
auto p =
#ifdef _WIN32
path
#else
canonPath(std::string(path))
#endif
;
if (dirOf(p) != storeDir)
throw BadStorePath("path '%s' is not in the Nix store", p);
return StorePath(baseNameOf(p));